java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 04:04:05,837 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 04:04:05,839 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 04:04:05,856 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 04:04:05,856 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 04:04:05,857 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 04:04:05,859 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 04:04:05,860 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 04:04:05,862 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 04:04:05,863 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 04:04:05,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 04:04:05,865 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 04:04:05,865 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 04:04:05,867 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 04:04:05,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 04:04:05,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 04:04:05,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 04:04:05,871 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 04:04:05,874 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 04:04:05,875 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 04:04:05,877 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 04:04:05,878 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 04:04:05,885 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 04:04:05,885 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 04:04:05,885 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 04:04:05,890 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 04:04:05,893 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 04:04:05,895 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 04:04:05,896 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 04:04:05,897 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 04:04:05,897 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 04:04:05,898 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 04:04:05,902 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 04:04:05,918 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 04:04:05,918 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 04:04:05,919 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 04:04:05,919 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 04:04:05,920 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 04:04:05,920 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 04:04:05,920 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 04:04:05,920 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 04:04:05,920 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 04:04:05,921 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 04:04:05,921 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 04:04:05,921 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 04:04:05,922 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 04:04:05,922 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 04:04:05,922 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 04:04:05,922 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 04:04:05,923 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 04:04:05,923 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 04:04:05,923 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 04:04:05,923 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 04:04:05,923 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 04:04:05,924 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 04:04:05,924 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 04:04:05,924 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 04:04:05,924 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:04:05,924 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 04:04:05,925 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 04:04:05,925 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 04:04:05,925 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 04:04:05,925 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 04:04:05,925 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 04:04:05,926 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 04:04:05,926 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 04:04:05,926 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 04:04:05,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 04:04:05,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 04:04:06,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 04:04:06,002 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 04:04:06,003 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 04:04:06,004 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-10-27 04:04:06,077 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/970658026/c00697e512b94a7da7e320c85276d7eb/FLAGff23747a5 [2018-10-27 04:04:06,568 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 04:04:06,569 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-10-27 04:04:06,576 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/970658026/c00697e512b94a7da7e320c85276d7eb/FLAGff23747a5 [2018-10-27 04:04:06,591 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/970658026/c00697e512b94a7da7e320c85276d7eb [2018-10-27 04:04:06,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 04:04:06,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 04:04:06,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 04:04:06,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 04:04:06,609 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 04:04:06,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7abe7212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06, skipping insertion in model container [2018-10-27 04:04:06,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 04:04:06,648 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 04:04:06,837 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:04:06,841 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 04:04:06,870 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:04:06,893 INFO L193 MainTranslator]: Completed translation [2018-10-27 04:04:06,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06 WrapperNode [2018-10-27 04:04:06,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 04:04:06,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 04:04:06,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 04:04:06,895 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 04:04:06,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 04:04:06,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 04:04:06,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 04:04:06,947 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 04:04:06,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... [2018-10-27 04:04:06,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 04:04:06,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 04:04:06,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 04:04:06,982 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 04:04:06,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:04:07,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 04:04:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 04:04:07,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 04:04:07,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 04:04:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 04:04:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 04:04:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 04:04:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 04:04:07,728 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 04:04:07,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:04:07 BoogieIcfgContainer [2018-10-27 04:04:07,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 04:04:07,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 04:04:07,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 04:04:07,737 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 04:04:07,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:04:06" (1/3) ... [2018-10-27 04:04:07,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b26eea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:04:07, skipping insertion in model container [2018-10-27 04:04:07,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:04:06" (2/3) ... [2018-10-27 04:04:07,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b26eea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:04:07, skipping insertion in model container [2018-10-27 04:04:07,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:04:07" (3/3) ... [2018-10-27 04:04:07,741 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_true-unreach-call.i [2018-10-27 04:04:07,751 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 04:04:07,760 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 04:04:07,780 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 04:04:07,814 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 04:04:07,815 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 04:04:07,815 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 04:04:07,815 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 04:04:07,815 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 04:04:07,815 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 04:04:07,816 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 04:04:07,816 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 04:04:07,834 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-10-27 04:04:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 04:04:07,841 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:04:07,842 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:04:07,845 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 04:04:07,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:04:07,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1480294570, now seen corresponding path program 1 times [2018-10-27 04:04:07,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:04:07,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:07,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:04:07,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:07,904 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:04:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:04:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:04:08,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:04:08,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 04:04:08,011 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 04:04:08,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 04:04:08,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 04:04:08,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 04:04:08,036 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-10-27 04:04:08,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:04:08,063 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2018-10-27 04:04:08,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 04:04:08,065 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-27 04:04:08,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:04:08,075 INFO L225 Difference]: With dead ends: 62 [2018-10-27 04:04:08,075 INFO L226 Difference]: Without dead ends: 31 [2018-10-27 04:04:08,079 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 04:04:08,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-27 04:04:08,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-10-27 04:04:08,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-27 04:04:08,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-10-27 04:04:08,127 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 18 [2018-10-27 04:04:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:04:08,127 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-10-27 04:04:08,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 04:04:08,128 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-10-27 04:04:08,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 04:04:08,128 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:04:08,130 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:04:08,130 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 04:04:08,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:04:08,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1304153360, now seen corresponding path program 1 times [2018-10-27 04:04:08,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:04:08,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:08,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:04:08,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:08,138 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:04:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:04:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:04:08,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:04:08,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 04:04:08,404 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 04:04:08,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 04:04:08,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 04:04:08,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 04:04:08,407 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2018-10-27 04:04:08,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:04:08,779 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2018-10-27 04:04:08,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 04:04:08,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-10-27 04:04:08,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:04:08,783 INFO L225 Difference]: With dead ends: 76 [2018-10-27 04:04:08,783 INFO L226 Difference]: Without dead ends: 47 [2018-10-27 04:04:08,785 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 04:04:08,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-10-27 04:04:08,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 37. [2018-10-27 04:04:08,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-27 04:04:08,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-10-27 04:04:08,797 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 21 [2018-10-27 04:04:08,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:04:08,798 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-10-27 04:04:08,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 04:04:08,798 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-10-27 04:04:08,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-27 04:04:08,799 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:04:08,800 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:04:08,800 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 04:04:08,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:04:08,801 INFO L82 PathProgramCache]: Analyzing trace with hash -2126407395, now seen corresponding path program 1 times [2018-10-27 04:04:08,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:04:08,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:08,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:04:08,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:08,802 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:04:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:04:09,579 WARN L179 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-10-27 04:04:10,107 WARN L179 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 31 [2018-10-27 04:04:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 04:04:10,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:04:10,276 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:04:10,277 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-10-27 04:04:10,280 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [18], [20], [24], [28], [31], [33], [37], [39], [43], [47], [50], [52], [54], [58], [62], [67], [77], [80], [82], [88], [89], [90], [92] [2018-10-27 04:04:10,339 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 04:04:10,339 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 04:04:10,522 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 04:04:14,104 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 04:04:14,106 INFO L272 AbstractInterpreter]: Visited 29 different actions 301 times. Merged at 14 different actions 224 times. Widened at 3 different actions 36 times. Found 51 fixpoints after 6 different actions. Largest state had 45 variables. [2018-10-27 04:04:14,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:04:14,152 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 04:04:14,152 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:04:14,153 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:04:14,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:04:14,170 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 04:04:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:04:14,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:04:14,403 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-27 04:04:14,454 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:04:14,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 29 [2018-10-27 04:04:14,712 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-10-27 04:04:14,719 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:04:14,720 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:04:14,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-27 04:04:14,721 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:14,750 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:14,758 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:14,758 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:16 [2018-10-27 04:04:14,786 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 04:04:14,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 04:04:14,805 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:14,827 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:14,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:14,895 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:13 [2018-10-27 04:04:14,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 04:04:14,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 04:04:14,954 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:14,962 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:14,971 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:14,971 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:13 [2018-10-27 04:04:15,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2018-10-27 04:04:15,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-10-27 04:04:15,012 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:15,026 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:15,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:15,039 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-10-27 04:04:15,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2018-10-27 04:04:15,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 10 [2018-10-27 04:04:15,147 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:15,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-10-27 04:04:15,163 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:15,194 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-10-27 04:04:15,194 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:15,217 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:15,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:15,267 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:51, output treesize:6 [2018-10-27 04:04:15,310 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:04:15,311 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:04:25,950 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 299 treesize of output 119 [2018-10-27 04:04:26,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-10-27 04:04:26,056 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:26,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 161 treesize of output 117 [2018-10-27 04:04:26,433 WARN L179 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2018-10-27 04:04:26,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2018-10-27 04:04:26,442 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:26,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2018-10-27 04:04:26,446 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:26,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 48 [2018-10-27 04:04:26,470 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:26,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 48 [2018-10-27 04:04:26,487 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:26,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 56 [2018-10-27 04:04:26,728 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-10-27 04:04:26,767 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 85 [2018-10-27 04:04:26,772 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 8 xjuncts. [2018-10-27 04:04:26,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 54 [2018-10-27 04:04:26,792 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-10-27 04:04:27,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2018-10-27 04:04:27,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 40 [2018-10-27 04:04:27,080 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 8 xjuncts. [2018-10-27 04:04:27,130 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 04:04:27,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2018-10-27 04:04:27,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-10-27 04:04:27,138 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:27,149 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:27,166 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-10-27 04:04:27,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 7 [2018-10-27 04:04:27,179 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:27,190 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:27,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-10-27 04:04:27,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 24 [2018-10-27 04:04:27,220 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-10-27 04:04:27,239 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 04:04:27,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2018-10-27 04:04:27,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 14 [2018-10-27 04:04:27,253 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-10-27 04:04:27,310 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 04:04:27,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2018-10-27 04:04:27,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 35 [2018-10-27 04:04:27,543 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-10-27 04:04:27,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-10-27 04:04:27,607 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:27,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-10-27 04:04:27,610 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:27,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 48 [2018-10-27 04:04:27,678 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 8 xjuncts. [2018-10-27 04:04:27,773 INFO L267 ElimStorePlain]: Start of recursive call 22: 3 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-10-27 04:04:27,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2018-10-27 04:04:27,808 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-10-27 04:04:27,809 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:27,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-10-27 04:04:27,918 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:27,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 26 [2018-10-27 04:04:27,953 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-10-27 04:04:27,982 INFO L267 ElimStorePlain]: Start of recursive call 27: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 04:04:28,258 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 8 xjuncts. [2018-10-27 04:04:28,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 65 [2018-10-27 04:04:28,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2018-10-27 04:04:28,345 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 2 xjuncts. [2018-10-27 04:04:28,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-10-27 04:04:28,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 14 [2018-10-27 04:04:28,386 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-10-27 04:04:28,392 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 04:04:28,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-10-27 04:04:28,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-10-27 04:04:28,398 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:28,401 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:28,434 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:28,503 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-10-27 04:04:28,551 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 5 xjuncts. [2018-10-27 04:04:28,551 INFO L202 ElimStorePlain]: Needed 36 recursive calls to eliminate 6 variables, input treesize:299, output treesize:48 [2018-10-27 04:04:28,600 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:04:28,628 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 04:04:28,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 12] total 22 [2018-10-27 04:04:28,628 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 04:04:28,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-27 04:04:28,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-27 04:04:28,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=365, Unknown=3, NotChecked=0, Total=462 [2018-10-27 04:04:28,632 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 15 states. [2018-10-27 04:04:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:04:29,169 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2018-10-27 04:04:29,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 04:04:29,170 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 32 [2018-10-27 04:04:29,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:04:29,172 INFO L225 Difference]: With dead ends: 53 [2018-10-27 04:04:29,172 INFO L226 Difference]: Without dead ends: 51 [2018-10-27 04:04:29,173 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=149, Invalid=498, Unknown=3, NotChecked=0, Total=650 [2018-10-27 04:04:29,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-27 04:04:29,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2018-10-27 04:04:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-27 04:04:29,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-10-27 04:04:29,181 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 32 [2018-10-27 04:04:29,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:04:29,182 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-10-27 04:04:29,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-27 04:04:29,182 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-10-27 04:04:29,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-27 04:04:29,183 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:04:29,184 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:04:29,184 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 04:04:29,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:04:29,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1933410342, now seen corresponding path program 1 times [2018-10-27 04:04:29,185 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:04:29,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:29,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:04:29,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:29,186 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:04:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:04:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 04:04:29,399 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:04:29,399 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:04:29,399 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-10-27 04:04:29,400 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [18], [20], [24], [28], [31], [33], [37], [39], [43], [47], [50], [52], [54], [58], [62], [67], [69], [71], [77], [80], [82], [85], [87], [88], [89], [90], [92], [93] [2018-10-27 04:04:29,403 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 04:04:29,404 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 04:04:29,415 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 04:04:32,559 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 04:04:32,560 INFO L272 AbstractInterpreter]: Visited 34 different actions 482 times. Merged at 19 different actions 304 times. Widened at 4 different actions 48 times. Found 52 fixpoints after 7 different actions. Largest state had 46 variables. [2018-10-27 04:04:32,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:04:32,598 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 04:04:32,598 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:04:32,598 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:04:32,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:04:32,614 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 04:04:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:04:32,664 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:04:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 04:04:33,043 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:04:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 04:04:33,230 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 04:04:33,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2018-10-27 04:04:33,231 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 04:04:33,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 04:04:33,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 04:04:33,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-10-27 04:04:33,232 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 8 states. [2018-10-27 04:04:33,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:04:33,498 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2018-10-27 04:04:33,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 04:04:33,500 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-10-27 04:04:33,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:04:33,504 INFO L225 Difference]: With dead ends: 117 [2018-10-27 04:04:33,504 INFO L226 Difference]: Without dead ends: 67 [2018-10-27 04:04:33,505 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-10-27 04:04:33,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-10-27 04:04:33,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2018-10-27 04:04:33,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-10-27 04:04:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-10-27 04:04:33,523 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 41 [2018-10-27 04:04:33,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:04:33,523 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-10-27 04:04:33,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 04:04:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-10-27 04:04:33,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-27 04:04:33,526 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:04:33,526 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:04:33,526 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 04:04:33,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:04:33,527 INFO L82 PathProgramCache]: Analyzing trace with hash -677671225, now seen corresponding path program 2 times [2018-10-27 04:04:33,527 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:04:33,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:33,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:04:33,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:04:33,528 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:04:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:04:34,133 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2018-10-27 04:04:37,146 WARN L179 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2018-10-27 04:04:37,650 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-27 04:04:37,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:04:37,651 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:04:37,651 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 04:04:37,651 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 04:04:37,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:04:37,652 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:04:37,665 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 04:04:37,665 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-10-27 04:04:38,134 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-10-27 04:04:38,134 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:04:38,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:04:38,176 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:04:38,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 29 [2018-10-27 04:04:38,196 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:04:38,197 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:04:38,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-27 04:04:38,198 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:38,204 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:38,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:38,215 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:22 [2018-10-27 04:04:38,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2018-10-27 04:04:38,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-10-27 04:04:38,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:38,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:38,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:38,378 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2018-10-27 04:04:53,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2018-10-27 04:04:53,469 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:04:53,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 34 [2018-10-27 04:04:53,470 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:53,488 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:04:53,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2018-10-27 04:04:53,489 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:53,507 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:04:53,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-10-27 04:04:53,509 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 04:04:53,513 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:53,534 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:53,535 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:99, output treesize:6 [2018-10-27 04:04:53,611 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-27 04:04:53,612 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:04:56,046 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 93 [2018-10-27 04:04:56,167 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-10-27 04:04:56,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 65 [2018-10-27 04:04:56,182 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-10-27 04:04:56,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 54 [2018-10-27 04:04:56,247 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-10-27 04:04:56,298 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:04:56,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 125 [2018-10-27 04:04:56,356 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 32 xjuncts. [2018-10-27 04:04:56,464 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:56,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 91 [2018-10-27 04:04:56,836 WARN L179 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2018-10-27 04:04:56,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 74 [2018-10-27 04:04:56,872 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 8 xjuncts. [2018-10-27 04:04:57,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 71 [2018-10-27 04:04:57,060 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 8 xjuncts. [2018-10-27 04:04:57,190 INFO L267 ElimStorePlain]: Start of recursive call 6: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:04:57,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 259 treesize of output 239 [2018-10-27 04:04:58,074 WARN L179 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 163 [2018-10-27 04:04:58,081 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:04:58,092 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:04:58,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 179 [2018-10-27 04:04:58,171 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:04:58,320 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:01,147 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:01,169 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:01,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 179 [2018-10-27 04:05:01,250 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:01,383 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:04,954 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:04,968 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:05,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 114 treesize of output 176 [2018-10-27 04:05:05,104 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:05,212 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:07,376 INFO L267 ElimStorePlain]: Start of recursive call 9: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:07,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 138 [2018-10-27 04:05:07,618 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-10-27 04:05:07,622 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:07,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 73 [2018-10-27 04:05:07,625 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:07,639 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 84 [2018-10-27 04:05:07,640 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:07,647 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:07,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 71 [2018-10-27 04:05:07,648 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 04:05:07,757 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 41 [2018-10-27 04:05:07,758 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:07,816 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:07,822 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:07,926 INFO L303 Elim1Store]: Index analysis took 117 ms [2018-10-27 04:05:07,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 81 [2018-10-27 04:05:07,975 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:07,978 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:07,986 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:08,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 125 [2018-10-27 04:05:08,029 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 16 xjuncts. [2018-10-27 04:05:08,270 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 04:05:08,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 221 treesize of output 195 [2018-10-27 04:05:08,548 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2018-10-27 04:05:08,552 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:08,553 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:08,554 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:08,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 105 [2018-10-27 04:05:08,561 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:08,565 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:08,567 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:08,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 96 [2018-10-27 04:05:08,569 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 04:05:08,630 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 100 [2018-10-27 04:05:08,633 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 4 xjuncts. [2018-10-27 04:05:08,774 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 41 [2018-10-27 04:05:08,775 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:08,846 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:08,849 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:08,854 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:08,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 106 [2018-10-27 04:05:08,891 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:08,917 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:08,981 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:09,008 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:09,011 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:09,030 INFO L303 Elim1Store]: Index analysis took 137 ms [2018-10-27 04:05:09,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 177 [2018-10-27 04:05:09,074 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-10-27 04:05:09,100 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 64 xjuncts. [2018-10-27 04:05:09,672 INFO L267 ElimStorePlain]: Start of recursive call 20: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 04:05:09,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 201 treesize of output 193 [2018-10-27 04:05:10,353 WARN L179 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 149 [2018-10-27 04:05:10,360 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:10,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 88 [2018-10-27 04:05:10,365 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 04:05:10,551 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:10,556 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:10,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 101 treesize of output 143 [2018-10-27 04:05:10,616 INFO L267 ElimStorePlain]: Start of recursive call 29: 25 dim-0 vars, End of recursive call: 25 dim-0 vars, and 16 xjuncts. [2018-10-27 04:05:11,504 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:11,514 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:11,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 98 treesize of output 184 [2018-10-27 04:05:11,590 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:11,698 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:14,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 51 [2018-10-27 04:05:14,341 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:14,678 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:14,683 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:14,764 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 95 treesize of output 181 [2018-10-27 04:05:14,765 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:14,847 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:16,721 INFO L267 ElimStorePlain]: Start of recursive call 27: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:16,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 89 [2018-10-27 04:05:16,762 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:16,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 38 [2018-10-27 04:05:16,777 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:16,792 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:16,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 204 treesize of output 194 [2018-10-27 04:05:17,370 WARN L179 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 132 [2018-10-27 04:05:17,380 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:17,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 105 [2018-10-27 04:05:17,441 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 4 xjuncts. [2018-10-27 04:05:17,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 90 [2018-10-27 04:05:17,704 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:17,902 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:17,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 86 [2018-10-27 04:05:17,905 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:18,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2018-10-27 04:05:18,042 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:18,045 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:18,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2018-10-27 04:05:18,047 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:18,413 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:18,418 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:18,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 96 treesize of output 178 [2018-10-27 04:05:18,500 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:18,586 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:20,483 INFO L267 ElimStorePlain]: Start of recursive call 35: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:20,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 80 [2018-10-27 04:05:20,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 35 [2018-10-27 04:05:20,533 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:20,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2018-10-27 04:05:20,628 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:20,636 INFO L267 ElimStorePlain]: Start of recursive call 42: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:20,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 138 treesize of output 132 [2018-10-27 04:05:20,862 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2018-10-27 04:05:20,864 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:20,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 70 [2018-10-27 04:05:20,867 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:20,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 64 [2018-10-27 04:05:20,946 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:21,000 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:21,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 88 [2018-10-27 04:05:21,023 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 4 xjuncts. [2018-10-27 04:05:21,112 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:21,120 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:21,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 69 treesize of output 175 [2018-10-27 04:05:21,197 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:21,265 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:23,237 INFO L267 ElimStorePlain]: Start of recursive call 45: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:23,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2018-10-27 04:05:23,680 WARN L179 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 116 [2018-10-27 04:05:23,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 64 [2018-10-27 04:05:23,684 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:23,802 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:23,808 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:23,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 69 treesize of output 175 [2018-10-27 04:05:23,890 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:23,949 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:26,609 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:26,630 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 84 [2018-10-27 04:05:26,632 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 4 xjuncts. [2018-10-27 04:05:26,737 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:26,743 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:26,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 69 treesize of output 175 [2018-10-27 04:05:26,821 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:26,882 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:29,053 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:29,063 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:29,143 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 66 treesize of output 172 [2018-10-27 04:05:29,144 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:29,199 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:31,055 INFO L267 ElimStorePlain]: Start of recursive call 50: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:31,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 138 [2018-10-27 04:05:31,265 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-10-27 04:05:31,269 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:31,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 77 [2018-10-27 04:05:31,273 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 04:05:31,276 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:31,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 72 [2018-10-27 04:05:31,277 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 04:05:31,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 88 [2018-10-27 04:05:31,294 INFO L267 ElimStorePlain]: Start of recursive call 59: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-10-27 04:05:31,417 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:31,418 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 52 [2018-10-27 04:05:31,419 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 04:05:31,422 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:31,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2018-10-27 04:05:31,425 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:31,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 57 [2018-10-27 04:05:31,437 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:31,440 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:31,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 56 [2018-10-27 04:05:31,443 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:31,528 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:31,529 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:31,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 125 [2018-10-27 04:05:31,573 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 16 xjuncts. [2018-10-27 04:05:31,581 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:31,582 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 04:05:31,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 81 [2018-10-27 04:05:31,598 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:31,665 INFO L267 ElimStorePlain]: Start of recursive call 56: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:31,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2018-10-27 04:05:31,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-10-27 04:05:31,752 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:31,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-10-27 04:05:31,780 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:31,814 INFO L267 ElimStorePlain]: Start of recursive call 66: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:31,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 80 [2018-10-27 04:05:31,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 35 [2018-10-27 04:05:31,879 INFO L267 ElimStorePlain]: Start of recursive call 70: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-10-27 04:05:31,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2018-10-27 04:05:31,910 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:31,923 INFO L267 ElimStorePlain]: Start of recursive call 69: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 04:05:31,941 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 206 treesize of output 182 [2018-10-27 04:05:32,061 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2018-10-27 04:05:32,066 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:32,068 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 90 [2018-10-27 04:05:32,069 INFO L267 ElimStorePlain]: Start of recursive call 73: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 04:05:32,115 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:32,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2018-10-27 04:05:32,120 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:32,158 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:32,163 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:32,168 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:32,168 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:32,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 100 treesize of output 176 [2018-10-27 04:05:32,232 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-10-27 04:05:32,247 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 64 xjuncts. [2018-10-27 04:05:32,469 INFO L267 ElimStorePlain]: Start of recursive call 72: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:32,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 127 treesize of output 121 [2018-10-27 04:05:32,933 WARN L179 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2018-10-27 04:05:32,936 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:32,944 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:32,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 119 [2018-10-27 04:05:32,986 INFO L267 ElimStorePlain]: Start of recursive call 77: 11 dim-0 vars, End of recursive call: 11 dim-0 vars, and 16 xjuncts. [2018-10-27 04:05:33,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-10-27 04:05:33,206 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:33,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2018-10-27 04:05:33,209 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:33,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-10-27 04:05:33,211 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:33,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-10-27 04:05:33,213 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:33,309 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:33,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 77 [2018-10-27 04:05:33,331 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 4 xjuncts. [2018-10-27 04:05:33,403 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-10-27 04:05:33,404 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:33,407 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:33,410 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2018-10-27 04:05:33,410 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:33,453 INFO L267 ElimStorePlain]: Start of recursive call 76: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:33,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 193 treesize of output 177 [2018-10-27 04:05:33,723 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2018-10-27 04:05:33,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 81 [2018-10-27 04:05:33,726 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:33,886 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:33,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 77 [2018-10-27 04:05:33,888 INFO L267 ElimStorePlain]: Start of recursive call 87: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 04:05:33,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 78 [2018-10-27 04:05:33,962 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:34,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2018-10-27 04:05:34,017 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:34,050 INFO L267 ElimStorePlain]: Start of recursive call 85: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:34,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 93 [2018-10-27 04:05:34,180 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-10-27 04:05:34,195 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 65 [2018-10-27 04:05:34,195 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:34,248 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:34,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 125 [2018-10-27 04:05:34,308 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 32 xjuncts. [2018-10-27 04:05:34,425 INFO L267 ElimStorePlain]: Start of recursive call 90: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:34,447 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 75 [2018-10-27 04:05:34,596 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2018-10-27 04:05:34,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 46 [2018-10-27 04:05:34,606 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 2 xjuncts. [2018-10-27 04:05:34,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2018-10-27 04:05:34,693 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:34,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-10-27 04:05:34,748 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:34,804 INFO L267 ElimStorePlain]: Start of recursive call 93: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:34,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 127 treesize of output 121 [2018-10-27 04:05:35,020 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2018-10-27 04:05:35,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 56 [2018-10-27 04:05:35,025 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:35,147 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:35,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2018-10-27 04:05:35,150 INFO L267 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:35,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 50 [2018-10-27 04:05:35,233 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:35,265 INFO L267 ElimStorePlain]: Start of recursive call 97: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:35,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 75 [2018-10-27 04:05:35,449 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2018-10-27 04:05:35,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2018-10-27 04:05:35,456 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:35,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-10-27 04:05:35,515 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:35,603 INFO L267 ElimStorePlain]: Start of recursive call 101: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:35,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2018-10-27 04:05:36,094 WARN L179 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 116 [2018-10-27 04:05:36,100 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:36,107 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:36,195 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 69 treesize of output 175 [2018-10-27 04:05:36,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:36,250 INFO L267 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:38,532 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:38,542 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:38,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 69 treesize of output 175 [2018-10-27 04:05:38,616 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:38,669 INFO L267 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:41,075 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:41,081 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:41,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 66 treesize of output 172 [2018-10-27 04:05:41,156 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:41,206 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:43,083 INFO L267 ElimStorePlain]: Start of recursive call 104: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:43,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 196 treesize of output 178 [2018-10-27 04:05:43,347 WARN L179 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2018-10-27 04:05:43,351 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:43,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 78 [2018-10-27 04:05:43,354 INFO L267 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2018-10-27 04:05:43,409 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:43,414 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 04:05:43,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 88 treesize of output 170 [2018-10-27 04:05:43,498 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 04:05:43,555 INFO L267 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 256 xjuncts. [2018-10-27 04:05:45,397 INFO L267 ElimStorePlain]: Start of recursive call 108: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:05:45,470 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-10-27 04:05:45,471 INFO L202 ElimStorePlain]: Needed 110 recursive calls to eliminate 3 variables, input treesize:149, output treesize:86 [2018-10-27 04:05:51,909 WARN L179 SmtUtils]: Spent 6.38 s on a formula simplification that was a NOOP. DAG size: 43 [2018-10-27 04:05:56,407 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-10-27 04:05:59,614 WARN L179 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-10-27 04:05:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-27 04:05:59,673 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 04:05:59,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 14] total 37 [2018-10-27 04:05:59,674 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 04:05:59,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-27 04:05:59,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-27 04:05:59,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1158, Unknown=9, NotChecked=0, Total=1332 [2018-10-27 04:05:59,676 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 28 states. [2018-10-27 04:06:05,572 WARN L179 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2018-10-27 04:06:06,050 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 62 [2018-10-27 04:06:23,551 WARN L179 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2018-10-27 04:06:28,077 WARN L179 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2018-10-27 04:06:33,158 WARN L179 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 66 [2018-10-27 04:06:45,938 WARN L179 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 68 [2018-10-27 04:07:19,201 WARN L179 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 73 [2018-10-27 04:07:26,508 WARN L179 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 71 [2018-10-27 04:07:29,018 WARN L179 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 76 [2018-10-27 04:07:37,137 WARN L179 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2018-10-27 04:07:41,488 WARN L179 SmtUtils]: Spent 2.11 s on a formula simplification that was a NOOP. DAG size: 71 [2018-10-27 04:07:47,747 WARN L179 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2018-10-27 04:07:55,992 WARN L179 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 80 DAG size of output: 74 Received shutdown request... [2018-10-27 04:08:32,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-10-27 04:08:32,906 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 04:08:32,911 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 04:08:32,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:08:32 BoogieIcfgContainer [2018-10-27 04:08:32,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 04:08:32,912 INFO L168 Benchmark]: Toolchain (without parser) took 266308.60 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 867.2 MB. Max. memory is 7.1 GB. [2018-10-27 04:08:32,912 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 04:08:32,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-27 04:08:32,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 04:08:32,913 INFO L168 Benchmark]: Boogie Preprocessor took 34.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 04:08:32,913 INFO L168 Benchmark]: RCFGBuilder took 747.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -766.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2018-10-27 04:08:32,913 INFO L168 Benchmark]: TraceAbstraction took 265181.39 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -314.4 MB). Peak memory consumption was 871.5 MB. Max. memory is 7.1 GB. [2018-10-27 04:08:32,915 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 747.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -766.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 265181.39 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -314.4 MB). Peak memory consumption was 871.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 6]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 6). Cancelled while BasicCegarLoop was constructing difference of abstraction (55states) and FLOYD_HOARE automaton (currently 44 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (185 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 1 error locations. TIMEOUT Result, 265.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 154.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 168 SDtfs, 357 SDslu, 873 SDs, 0 SdLazy, 972 SolverSat, 201 SolverUnsat, 23 SolverUnknown, 0 SolverNotchecked, 50.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 209 SyntacticMatches, 20 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 148.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.0s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 29 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 101.9s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 403 ConstructedInterpolants, 59 QuantifiedInterpolants, 426555 SizeOfPredicates, 86 NumberOfNonLiveVariables, 639 ConjunctsInSsa, 146 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 61/135 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown